Liquid crystal device with one liquid crystal showing a choleste

Details Liquid crystal device with one liquid crystal showing a choleste Liquid crystal device with one liquid crystal showing a choleste

1995-06-07

1997-02-18

Sikes, William L.

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

347168, G02F 1141, G02F 113

Patent

active

056046146

ABSTRACT:
A liquid crystal device is constituted by (a) a pair of base plates each having an orientation control film thereon, and (b) a liquid crystal composition interposed between the base plates. The liquid crystal composition comprises at least two liquid crystal compounds including at least one liquid crystal compound which has a temperature range in which it shows cholesteric phase. The liquid crystal composition has a temperature range in which it shows cholesteric phase and is placed in chiral smectic phase which has been formed through cholesteric phase on temperature decrease. The liquid crystal composition comprises liquid crystal molecules having long axes forming a pre-tilt in the chiral smectic phase.

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